JP3205308B2 - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator having a refrigerating compartment and a freezing compartment disposed, respectively, at the upper and lower parts and excellent in cooling efficiency, inner volume efficiency, illumination efficiency, storage quality and convenience. SOLUTION: A refrigerating compartment 37 is cooled by disposing a first evaporator 45 and a first fan 46 in a substantially L-shaped first cooling compartment 74 disposed at the top part and upper rear part in the refrigerator. A freezing compartment 38 is cooled by means of a second evaporator 61 and a second fan 62 in order to enhance cooling efficiency and to enhance inner volume efficiency with a simple air passage. The second evaporator 61 can be reduced in size and the position of a heat insulating section wall 36 is lowered thus enhancing convenience of containing range of high use frequency. Dry up of hoods in the refrigerating compartment 37 is suppressed through cooling with the first evaporator 45 having high evaporation temperature and temperature fluctuation in the compartment is eliminated through delivery of chill from the front side of the first cooling compartment 74 thus enhancing storage quality. Furthermore, inside of the refrigerating compartment 37 is illuminated three-dimensionally by means of a pair of illuminators 75 disposed at the bend of a substantially L-shaped first illumination compartment 50 in the first cooling compartment 74.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator having a refrigerator compartment at the top and a freezer compartment at the bottom.

[0002]

2. Description of the Related Art Recent refrigerators are provided with a storage room controlled at a plurality of temperatures corresponding to foods to be stored. conventionally,
The mainstream was a refrigerator room at the top, a refrigerator room at the center, and a vegetable room at the bottom, but recently emphasizing ease of use,
Refrigerators with a refrigeration compartment at the top, a freezer compartment or a vegetable compartment at the center and at the bottom have been proposed and become the mainstream. Among them, a conventional example is disclosed in JP-A-5-71850.

Hereinafter, the conventional refrigerator will be described with reference to the drawings.

FIG. 10 is a sectional view of a conventional refrigerator, and FIG. 11 is a refrigeration cycle diagram of the conventional refrigerator.

In FIG. 10, 1 is a refrigerator main body, 2 is a refrigeration room provided on the upper part of the main body 1, 3 is a freezing room provided on the lower part, and 4 is a front opening of the refrigeration room 2 which can be opened and closed. The attached door 5 is a door that is openably and closably attached to the front opening of the freezer compartment 3, and the reference numeral 6 is a heat insulating partition wall that defines the refrigerator compartment 2 and the freezer compartment 3. Reference numeral 7 denotes a cooling chamber provided at a rear portion of the freezing chamber 3, which is internally provided with an evaporator 8 of a refrigeration cycle and a blower 9 for forced circulation.

Reference numeral 10 denotes a vegetable room provided in the lower part of the refrigeration room 2, and reference numeral 11 denotes a low-temperature room for mainly storing fresh foods such as meat and seafood. Reference numeral 12 denotes an air path control panel provided behind the vegetable room 10 and the low-temperature room 11, and has therein the refrigeration room 2
The room temperature is adjusted to a predetermined value (for example, 4
C) and the low-temperature chamber 11
The room temperature is adjusted to a predetermined value (for example, 0
(° C.).

Reference numeral 15 denotes a cool air discharge port from the cooling room 7 to the freezing room 3, and 16 denotes a cool air suction port from the freezing room 3 to the cooling room 7. 17 is provided at the rear of the refrigerating compartment 2 covered with a back plate 18, and is provided from the cooling compartment 7 to the damper device 1.
A cool air discharge air passage communicating with the refrigerator compartment 2 through
Is a cool air discharge port that opens into the refrigerator compartment 2 from the cool air discharge air passage 17. Reference numeral 20 denotes a cool air discharge air path communicating from the cooling chamber 7 to the low temperature chamber 11 via the damper device 14, and 21 denotes a cool air discharge air path from the cool air discharge air path 20.
It is a cool air discharge port that opens to the outside. Reference numeral 22 denotes a cool air intake air passage communicating from the refrigerator compartment 2 to the cooling compartment 7. 2
Reference numeral 3 denotes a cold air inlet of the cold air suction air passage 22 opened in the refrigerator compartment 2 and provided at the rear of the vegetable compartment 10 to cool the refrigerator compartment 2, the vegetable compartment 10 and the cold room 11 and cool the inside. It is configured to be inhaled.

Temperature detectors 24, 25, and 26 detect the temperatures in the refrigeration compartment 2, the freezing compartment 3, and the low-temperature compartment 11, and maintain the temperature of each compartment at an appropriate temperature through a temperature control device (not shown). It is. 27 is a back plate 18 of the refrigerator compartment 2
The cool air discharge air path 17 is an illuminating device provided in a space insulated from the back surface of the refrigerator compartment, and is configured to be turned on in conjunction with opening of the refrigerator compartment door 4. Reference numeral 28 denotes a machine room partitioned and formed at the lower rear of the refrigerator main body 1, reference numeral 29 denotes a compressor of a refrigeration cycle provided in the machine room 28, and reference numeral 30 denotes a condenser.

In FIG. 11, reference numeral 31 denotes a decompressor such as a capillary tube, which is provided with the compressor 29, the condenser 30, the evaporator 8, and the like.
Together with the ring to form a closed-loop refrigeration cycle.

[0010] Regarding the refrigerator configured as described above,
Next, the operation will be described.

The refrigerant compressed to a high pressure by the compressor 29 is radiated by the condenser 30 to become a liquid refrigerant, and is decompressed while passing through the decompressor 31 to absorb the heat in the cooling chamber 7 in the evaporator 8. Expands and evaporates. The vaporized refrigerant returns to the compressor 29, and this operation is repeated to cool the refrigerator.

That is, a part of the cool air generated by cooling the surrounding air by the heat absorbing action of the evaporator 8 is sent into the freezing room 3 from the cool air discharge port 15 by the blower 9, and after cooling the room, the cool air is cooled. It is returned to the cooling chamber 7 through the suction port 16. Compressor 2 until the temperature of temperature detector 24 decreases to the set value.
9. The operation of the blower 9 is continued, and then both are stopped until it rises to the set value. This operation is repeated intermittently to keep the room cooled to a predetermined value (for example, −18 ° C.).

A part of the cool air is sent into the refrigerator compartment 2 from the cool air discharge port 19 through the cool air discharge air passage 17, cools down the room, and is returned to the cooling chamber 7 through the cool air suction air passage 22 from the cool air suction port 23. It is. At this time, the damper device 13 is opened until the temperature of the temperature detector 24 falls to the set value, and then closed until the temperature rises to the set value. Is kept cool. At the same time, the vegetable compartment 10 is cooled and maintained at a predetermined value (for example, 6 ° C.) while preventing drying of the interior by indirect cooling from the outer periphery.

On the other hand, a part of the cool air is further discharged to the cool air discharge passage 2.
The cooling air is sent into the low-temperature chamber 11 from the cool air discharge port 21 through 0, and after cooling the room, it is joined to the cool air suction air passage 22 from the cool air suction port 23 and returned to the cooling chamber 7. At this time, until the temperature of the temperature detector 26 falls to the set value, the damper device 14
Is opened and then closed until it rises to the set value, and this action is repeated intermittently to set the room to a predetermined value (for example, 0
(° C).

When the door 4 of the refrigerator compartment is opened, the lighting device 27 is turned on to illuminate the interior of the refrigerator compartment 2 from the rear.

[0016]

However, in the above-mentioned conventional construction, since one chamber is cooled by one evaporator 8 and one blower 9, the cooling air flowing through the cooling chamber 2 and the cooling chamber 7 having a particularly large cooling load is cooled. Discharge air path 15 and cool air suction air path 19
However, there has been a problem that the cooling efficiency is reduced due to an increase in wind path resistance and heat loss. Furthermore, the cold air discharge air passage 15 has a large temperature difference from the inside of the refrigerator compartment 2 and requires a considerable heat insulating structure. There was also a problem of becoming smaller.

Further, it is necessary to increase the dimension of the evaporator 8 in the height direction in order to secure the cooling capacity with one evaporator 8, and as a result, the heat insulating partition wall 6 between the refrigerator compartment 2 and the freezer compartment 3 is required. There is a problem that the storage position (the central portion and the lower portion) of the refrigerator compartment 2 having a height that is easy to use is compressed and the usability is deteriorated.

Further, in order to cool a plurality of chambers having different storage temperatures with one evaporator 8, it is necessary to lower the temperature of the evaporator 8 by adjusting the design of the evaporating temperature to the freezing room 3 having the lowest temperature (for example, -30). ° C), refrigeration cycle efficiency (refrigeration capacity /
Input) and power consumption increases.

In addition, the refrigerator compartment 2, the vegetable compartment 10, and the low-temperature compartment 11, which have higher storage temperatures than the freezer compartment 3, are supplied with cold air at an unnecessarily low temperature, thereby promoting the drying of the stored food. Also, there is a problem that the storage quality of the stored food is deteriorated by causing partial supercooling near the cool air discharge ports 16 and 18.

The front part of the refrigeration compartment 2 is opened and closed by the door 4 and the door 4
Although the storage temperature tends to be high due to heat absorption due to heat absorption around the outside, the cold air discharged from the cold air discharge port 16 does not easily reach the front because the cold air discharge passage 15 is provided at the rear of the refrigerator compartment 2. The temperature unevenness in the refrigerator compartment 2 is further expanded, and the temperature in the front portion of the room is high and the temperature in the rear portion of the compartment is low,
There was also a problem that the storage quality of the stored food was not stabilized.

Further, since the lighting device 27 is provided on the rear surface in the refrigerator compartment 2, uneven illumination is caused only by lighting from the rear of the room, and the front portion is blocked especially when a large amount of food is stored. There was also an inconvenience that the lighting sometimes did not reach the room.

A first object of the present invention is to solve the above-mentioned conventional problems. A first object of the present invention is to provide a refrigerator having a refrigerator compartment at an upper portion and a freezer compartment at a lower portion. And to provide a power-saving refrigerator with high cooling efficiency.

It is a second object of the present invention to effectively secure the internal volume with a simple air path configuration.

Further, a third object of the present invention is to improve the usability of a storage area which is easily accessible by the user and is frequently used, and to improve the convenience.

A fourth object of the present invention is to improve storage quality by suppressing temperature rise, unevenness in temperature, drying, etc. of stored food.

A fifth object of the present invention is to provide a refrigerator having an efficient lighting device in a refrigerator.

[0027]

In order to achieve this object, the refrigerator of the present invention has a refrigerator compartment formed at the upper part of the main body and a freezer compartment formed at the lower part of the main body by the heat insulating partition wall. A first evaporator vertically installed in a substantially L-shaped first cooling chamber provided in a top portion, a first blower provided above the first evaporator, and a front surface formed in an upper part of the first cooling chamber A cool air discharge air passage having a cool air discharge port, a machine room provided with a compressor of a refrigeration cycle at a lower rear portion of the main body, and a second cooling room provided above the machine room and behind the freezer room. It comprises a second evaporator installed vertically and a second blower provided above it.

As a result, it is possible to provide a power-saving refrigerator having a high cooling efficiency and a refrigerator having a high internal volume efficiency with an appropriate refrigeration cycle configuration and a simple air path configuration. Further, the usability of the frequently used storage range can be improved, and the convenience can be improved. In addition, it is possible to suppress temperature rise, temperature unevenness, and drying of the stored food, thereby improving the storage quality.

Further, the refrigerator of the present invention has a substantially L-shape which is provided on both sides of the first cooling chamber and which is covered with a first evaporator and a light-transmitting plate which is formed so as to be separated from the cool air discharge air passage. Shaped lighting room,
It consists of at least one pair of lighting devices provided in this lighting room.

As a result, the unevenness of the illumination in the refrigerator compartment is reduced, and the interior of the refrigerator is illuminated easily regardless of the food storage state.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a heat insulating partition wall for vertically partitioning the inside of a refrigerator main body, and a plurality of shelves partitioned and formed on the refrigerator main body by the heat insulating partition wall. A refrigerator compartment, a freezer compartment defined below the refrigerator main body, a first cooling compartment provided from an upper rear portion to a ceiling portion of the refrigerator compartment, and a rear portion of the first cooling compartment in a vertical direction. An installed first evaporator;
A first blower provided above the evaporator, a cool air discharge air passage formed in an upper portion of the first cooling chamber and provided in a ceiling portion of the refrigerator compartment, and a cool air discharge air passage formed in front of the cool air discharge air passage. A cold air discharge port, a machine room provided with a compressor of a refrigeration cycle at a lower rear portion of the refrigerator main body, a second cooling room provided above the machine room and behind the freezer room, A second evaporator vertically installed in the cooling chamber, a second blower provided above the second evaporator, and the first cooling
The first evaporator and the cold air discharge provided on both sides of the chamber
The air path is substantially L-shaped when viewed from the side surface formed by partitioning.
A light room, a translucent plate that covers the lighting room from the room side,
The refrigerator comprises a first evaporator and a first air blower, and the freezer room has a second evaporator and a second air blower, each of which has a storage temperature. Cooling is commensurately increased to increase the efficiency of the refrigeration cycle, and cooling air passages are simplified in each room to increase cooling efficiency and reduce power consumption.

Further, the air passage is simplified and the effective internal volume is expanded. In addition, the second evaporator at the rear of the freezer compartment can be downsized and the position of the heat insulating partition wall can be lowered, and the cold air discharge air passage and the first evaporator are housed at the upper rear and top of the refrigerator compartment, which was conventionally inconvenient. As a result, the usability of the frequently used storage range that is easily reachable by the user is improved.

Further, in the refrigerating room, the vapor pressure difference is reduced by the amount that the evaporating temperature can be raised by a dedicated evaporator in accordance with the room temperature,
Drying of stored food is also suppressed. Furthermore, since the cool air is discharged from the upper front surface of the refrigerator compartment at a cool air temperature corresponding to the refrigerator compartment temperature, the temperature rise at the front of the compartment and the overcooling at the rear of the compartment are suppressed, and the storage quality is stabilized. In addition, since the freezer compartment is also cooled independently of the refrigerator compartment by a dedicated evaporator, stable storage quality with a small temperature rise is obtained without being directly affected by the refrigerator compartment.

Further, from the top part and the upper rear part in the refrigerator compartment
Light is efficiently radiated into the room, reducing uneven illuminance,
The interior is illuminated for easy viewing regardless of the food storage state.

According to a second aspect of the present invention, there is provided a heat insulating partition wall for vertically partitioning the inside of a refrigerator main body, a refrigerator compartment formed above the heat insulating partition wall and having a plurality of shelves, Vegetable compartment partitioned below the refrigerator compartment at the top, and a freezer compartment partitioned below the heat insulating wall,
A door independently provided at the front of the refrigerator compartment, the vegetable compartment and the freezer compartment, a first cooling compartment provided from the upper rear to the top of the refrigerator compartment, and a vertical direction at the rear of the first cooling compartment. A first evaporator installed in the first evaporator, a first blower provided above the first evaporator, and a cool air discharge formed in an upper portion of the first cooling chamber and provided in a ceiling portion of the refrigerator compartment. An air path, a cool air discharge port formed in front of the cool air discharge air path, a machine room provided with a compressor of a refrigeration cycle at a lower rear portion of the refrigerator main body, and a rear side of the freezer room above the machine room. a second blower provided with a second evaporator disposed in a vertical direction, above the second evaporator and a second cooling chamber provided in the second cooling chamber, the first On both sides of the cooling chamber
And separated from the first evaporator and the cool air discharge air passage.
A substantially L-shaped illumination room as viewed from the side formed, and the illumination
A light-transmitting plate that covers the room from the indoor side, and a light-transmitting plate provided in the lighting room.
At least a pair of lighting devices , the first evaporator and the first blower to cool the refrigerator compartment and the vegetable compartment,
The second evaporator and the second blower are configured to cool the freezing room. The refrigerator room and the vegetable room are the first evaporator and the first blower, and the freezing room is the second evaporator. And the second blower is cooled in accordance with the respective storage temperature to increase the efficiency of the refrigeration cycle, and at the same time, the refrigerating room and the vegetable room can evaporate with a dedicated evaporator in accordance with the room temperature, so that the vapor pressure difference is reduced. It is reduced in size and drying of the stored food is suppressed.

In addition, the air passage is simplified, the ineffective space especially at the back of the vegetable compartment is eliminated to increase the storage capacity, and the refrigerator compartment is provided with an independent door at a convenient height at the center of the refrigerator. Usability is improved.

Further, from the top part and the upper rear part in the refrigerator compartment
Light is efficiently radiated into the room, reducing uneven illuminance,
The interior is illuminated for easy viewing regardless of the food storage state.

[0038] According to a third aspect of the invention, Oite to the invention claimed in claim 1 or claim 2, illuminating a pair of lighting devices
It is provided near the bent part of the room, and the lighting device
Light is transmitted to the L-shaped translucent plate and lighting is performed rationally
It is.

[0039]

[0040]

[0041]

[0042]

[0043]

[0044]

[0045]

[0046]

[0047]

[0048]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a refrigerator according to the present invention will be described below with reference to the drawings.

Embodiment 1 FIG. 1 is a perspective view of a refrigerator according to Embodiment 1 of the present invention, and FIG.
Is a sectional view of the refrigerator according to the embodiment, and FIG. 3 is a refrigeration cycle diagram of the refrigerator according to the embodiment.

In FIG. 1 and FIG. 2, reference numeral 32 denotes a refrigerator main body, which is constituted by an outer box 33 made of steel plate, an inner box 34 made of resin, and the heat insulating material 35 filled between the outer box 33 and the inner box 34. ing. Reference numeral 36 denotes a heat insulating partition wall which partitions the inside of the refrigerator main body 32 into upper and lower portions, and forms a refrigerator compartment 37 at an upper portion and a freezer compartment 38 at a lower portion. Reference numeral 39 denotes a rotatable door which is attached to the opening surface of the refrigerator compartment 37 so as to be openable and closable. Reference numeral 42 denotes a drawer-type door which is attached to an opening surface in the freezing chamber 38 so as to be openable and closable, and is configured so that the storage container 43 on the indoor side can be integrally pulled out.

Reference numeral 44 denotes a first L-shaped horizontal portion and a vertical portion extending from the top portion to the upper rear portion in the refrigerator compartment 37.
A first evaporator 45 provided in a vertical portion and a first blower 46 provided above the first evaporator 45;
Cold air inlet 47 formed below the first evaporator 45
And a cool air discharge air passage 49 provided on a horizontal portion and having a cool air discharge port 48 formed on the front surface. Reference numeral 50 denotes an illumination room which is formed on both sides of the first cooling chamber 44 in a substantially L-shape with a horizontal portion and a vertical portion separated by a partition wall 51. Lighting devices 52, 53
Is provided. Reference numeral 54 denotes a substantially L-shaped light-transmitting plate that covers the front surface of the lighting room 50 and transmits the light of the lighting devices 52 and 53.

Reference numeral 55 denotes a plurality of storage sections 56 provided at appropriate intervals in the main body side storage section 40 in the refrigerator compartment 37.
The lower end surface of the first cooling chamber 44 is installed so as to be substantially flush with one of the shelves 55.

Numeral 57 denotes a vegetable room provided below the main body side storage section 40 in the refrigerator compartment 37, and is provided with humidity control means 58 such as a moisture permeable membrane for maintaining the room at a high humidity. Reference numeral 59 denotes a storage room provided above the vegetable room 56.

Reference numeral 60 denotes a second cooling chamber provided at the rear of the freezing chamber 38 in a vertical direction.
1 and a second blower 62 provided above the second evaporator 61.

Reference numerals 63 and 64 denote the refrigerator compartment 37 and the freezer compartment 38, respectively.
This is a temperature detector that detects the temperature in the interior and maintains the temperature of each chamber at an appropriate temperature through a temperature control device (not shown). Reference numeral 65 denotes a machine room partitioned and formed at a lower rear portion of the refrigerator main body 32, reference numeral 66 denotes a refrigerating cycle compressor provided in the machine room 65, and reference numeral 67 denotes a condenser.

In FIG. 3, reference numeral 68 denotes a first decompressor such as a capillary tube, 69 denotes a switching valve provided downstream of the first decompressor 68 to switch the refrigerant flow path, and 70 denotes a branch from the switching valve 69. A second decompressor provided downstream of the apparatus. Then, the compressor 66, the condenser 67, the first decompressor 68, the switching valve 69, the first evaporator 45, and the second evaporator 61 are connected in a ring shape in this order, and the first refrigerant circuit 71 is a closed loop. Is configured. In addition, by the switching action of the switching valve 69, the gas is bypassed to the second evaporator 61 via the second decompressor 70, and the compressor 66, the condenser 67,
A second closed loop is connected in the order of the first decompressor 68, the switching valve 69, the second decompressor 70, and the second evaporator 61.
Is configured.

Regarding the refrigerator configured as described above,
Next, the operation will be described.

If the temperature detector 64 in the freezer compartment 38 is higher than the set value, the compressor 66 is operated, and the refrigerant compressed to a high pressure by the compressor 66 is radiated by the condenser 67 to become a liquid refrigerant, and becomes the first refrigerant. The pressure is reduced while passing through the pressure reducer 68 and reaches the switching valve 69. At this time, first, if the temperature detector 63 in the refrigerator compartment 37 detects a temperature higher than the set value, the switching valve 69 is switched to the first refrigerant circuit 71 side, and the refrigerant flows into the compressor 66 and the condenser 67. Circulates through the first decompressor 68, the switching valve 69, the first evaporator 45, and the second evaporator 61, and absorbs heat in the first cooling chamber 44 by the first evaporator 45. The portion expands and vaporizes, and then the second evaporator absorbs heat in the second cooling chamber and expands and vaporizes. The vaporized refrigerant returns to the compressor 66, and this operation is repeated to cool the refrigerator compartment 37 and the freezer compartment 38.

That is, the cool air generated by cooling the surrounding air by the heat absorbing action of the first evaporator 45 is supplied to the first blower 4.
Due to the forced ventilation action of 6, the air passes through the cool air discharge air passage 49 in the first cooling chamber 44 and is discharged from the cool air discharge port 48 on the front to the upper front of the refrigerator compartment 37. The discharged cool air is stored in each storage section 56 of the main body side storage section 40, the vegetable room 57, and the storage room 59.
After cooling the door storage section 41, the cooling air is returned into the first cooling chamber 44 through a cold air suction port 47 provided at the lower end of the first cooling chamber 44.

Then, the operation of the first blower 46 is continued until the temperature of the temperature detector 63 decreases to the set value, and thereafter, the operation is stopped until the temperature rises to the set value. Is kept at a predetermined value (for example, 4 ° C.).

As described above, the cooling in the refrigerator compartment 37 is not performed from a single evaporator provided in the freezer compartment through a long air passage and through the damper device as in the prior art, but rather in the rear part above the refrigerator compartment. And a substantially L-shaped first cooling chamber 4 provided in the top portion
Since the exclusive first evaporator 45 and the cool air discharge air passage 49 are incorporated into the inside 4 for cooling, the air passage is simplified and the effective internal volume is expanded. Further, since the first cooling chamber 44 is provided at the upper rear portion and the top portion of the refrigerator compartment, which has been conventionally inconvenient, the influence on the actual internal volume is further reduced, and the frequently used storage area which is easily reachable by the user. The usability is improved.

Further, the lower end surface of the first cooling chamber 44 is
5 is provided so as to be substantially on the same plane as that of the storage compartment 56, so that there is no useless space having a halfway height that cannot be substantially used in the back part of the storage compartment 56, and the appearance is good.

The refrigerator compartment 37 is provided with a dedicated first evaporator 4.
By providing the pressure reducing device 5, the evaporation temperature can be increased in accordance with the room temperature by appropriately setting the pressure reduction amount of the first pressure reducing device 68, and the vapor pressure difference between the room and the first evaporator 45 is reduced. Therefore, drying of the stored food is suppressed and storage quality is improved.

Further, since the cool air having a temperature closer to the room temperature is discharged from the cool air discharge port 48 provided in the upper front surface of the refrigerator compartment 37, the temperature rise in the front of the room and the overcooling in the rear of the room are suppressed. Conventionally, the temperature unevenness in the room where the front part is high and the rear part is low is reduced, and the storage quality is stabilized. Further, since the cooling is performed independently of the freezing compartment 38, the storage quality is improved without being affected by the temperature rise due to the defrosting of the second evaporator 61.

Further, since the drying in the refrigerator compartment 37 is suppressed, the atmosphere around the vegetable compartment 57 and the storage compartment 59 does not become low in humidity, so that the drying inside the compartment is suppressed. Therefore, the vegetable room 57 can store vegetables and fruits under high humidity conditions in combination with the humidity control action of the humidity control means 58, and the storage room 59 can also be used for divisional management of fresh foods such as meat and fish that do not like drying. Then it is convenient.

On the other hand, the cool air generated by the surrounding air being cooled by the heat absorbing action of the second evaporator 61 is sent from the second cooling chamber 60 to the freezing chamber 38 by the forced ventilation action of the second blower 62.
It is discharged into. The discharged cool air cools the inside of the storage container 43 and then returns to the second cooling chamber 60. This cooling operation is performed until the temperature detector 64 is cooled to the set value. When the temperature reaches the set value, the compressor 66 and the second blower 62 are also stopped. Then, when the temperature rises to the set value, the compressor 66 and the second blower 62 are operated again, and thereafter, this operation is intermittently repeated, so that the inside of the freezing room 38 has a predetermined value (for example,-).
18 ° C.). As described above, the freezing compartment 38 is also cooled by the dedicated second evaporator 61 independently of the refrigerating compartment 37, and thus has a high storage temperature and a large storage load.
Stable storage quality without being directly affected by

Further, by using a dedicated evaporator for the freezer compartment, the size of the second evaporator at the rear of the freezer compartment can be reduced, and the position of the heat insulating partition wall 36 between the refrigerator compartment 37 and the freezer compartment 38 can be lowered. In addition, the easy-to-use height storage range (central and lower portions) in the refrigerator compartment 37 is expanded, and the usability is improved.

Next, if the temperature detector 63 of the refrigerator compartment 38 becomes lower than the set value during the operation of the compressor 66, the switching valve 69 is switched to the second refrigerant circuit 72 side, and the refrigerant is supplied to the compressor 6
6, condenser 67, first decompressor 68, switching valve 69, second
Circulates through the decompressor 70 and the second evaporator 61, and the second evaporator 61 absorbs heat in the second cooling chamber 60 and expands and vaporizes. The vaporized refrigerant returns to the compressor 66, and this circulation operation is repeated, so that only the second evaporator 61 exerts a cooling operation. Therefore, the operation of the second blower 62 and the freezing room 3
8 alone is cooled, and the temperature sensor 64 in the freezer compartment drops to the set value and the compressor 66 and the second blower 62 stop, or the temperature sensor 63 in the refrigerator compartment rises to the set value. The process is continued until it is switched to the first refrigerant circuit 71 side.

This operation is repeated intermittently to keep the inside of the freezing room 38 cooled to a predetermined value (for example, -18 ° C.). In this way, the freezing compartment 38 also sets the second decompressor 70 to an appropriate amount of pressure reduction, so that the second chamber can be cooled independently during the second cooling.
The evaporator 61 can be set at a lower evaporating temperature, and the cooling capacity can be increased by lowering the cool air temperature. Therefore, a rise in the temperature of the food stored in the freezing compartment 38 can be suppressed, and stable storage quality can be obtained.

As described above, the refrigerating room 37 is provided with the first evaporator 4.
5 and the first blower 46 and the freezer compartment 38 are provided with the second evaporator 6.
Since the first and second blowers 62 are cooled at a cool air temperature corresponding to the respective storage temperatures, the efficiency of the refrigeration cycle is increased by elevating the evaporation temperature particularly during cooling of the refrigerator compartment, and the cooling air passages are also provided in the respective compartments. Thus, the cooling efficiency is increased and the power consumption can be reduced.

In order to further increase the evaporating temperature of the first evaporator 45, the first pressure reducer 68 may be reduced in pressure and the second pressure reducer 70 may be reduced in pressure. After reducing the amount of pressure reduction of the pressure reducer 68, another pressure reducer is added between the first evaporator 45 and the second evaporator 61 to lower the evaporation temperature of the second evaporator 61. Is also good. An appropriate combination and setting may be selected according to the target degree of the improvement of the efficiency of the refrigeration cycle and the improvement of the storage quality of food. Further, the switching valve 69 may be, for example, a three-way valve that selectively switches between the first refrigerant circuit 71 and the second refrigerant circuit 72. When the valve is opened, the valve almost flows to the first refrigerant circuit 71 due to a resistance difference. When closed, it may be configured to flow only to the second refrigerant circuit 72 side, and an inexpensive two-way valve may be used.

In the refrigerating room 37, the lighting devices 52 and 53 in the L-shaped lighting room 50 provided on both sides of the first cooling room 44 are turned on when the door 39 is opened.
At this time, a pair of left and right illuminating devices 52 provided in the horizontal portion irradiate light downward from the upper front surface of the refrigerator compartment 37 via the light transmitting plate 54. On the other hand, a pair of left and right illuminating devices 53 provided in the vertical portion irradiate light downward from the upper inner surface of the refrigerator compartment 37 via the light transmitting plate 54.

For this reason, the refrigerator compartment is illuminated three-dimensionally, and the unevenness of the illumination is reduced from the front to the back, and the illumination is blocked by the stored objects placed in front as in the conventional illumination only from the back of the room. I don't have to. Further, since the lighting is compactly incorporated by utilizing the structure of the first cooling chamber 44, the space can be effectively used, and the appearance can be improved by the L-shaped lighting, and the assembly in the manufacturing process is easy. Can be done.

Embodiment 2 FIG. 4 is a perspective view of a refrigerator according to Embodiment 2 of the present invention, and FIG.
FIG. 2 is a sectional view of the refrigerator according to the embodiment.

The following examples are described in Example 1.
The same parts as those in the first embodiment will be omitted from the description of the first embodiment, and only different components will be described with new reference numerals.

In FIG. 4, reference numeral 73 denotes a refrigerator body.
Reference numeral 74 denotes a first cooling chamber formed in a substantially L-shape in a horizontal portion and a vertical portion from the upper rear portion to the top portion in the refrigerator compartment 37,
A first evaporator 45 provided in a vertical portion and the first evaporator 4
5 comprises a first blower 46 provided above, a cool air inlet 47 formed below the first evaporator 45, and a cool air discharge passage 49 provided in a horizontal portion and having a cool air discharge port 48 formed on the front surface. Have been. 50 is the first cooling chamber 44
Are separated by a partition 51 on both sides of the horizontal portion and the vertical portion.
The lighting room is formed in a character shape, and a pair of left and right lighting devices 75 is provided near a bent portion of the lighting room 50. 5
Reference numeral 4 denotes a substantially L-shaped light-transmitting plate that covers the front surface of the lighting room 50 and transmits light of the lighting device 75.

In the above configuration, the door 3 of the refrigerator compartment
The lighting device 75 in the lighting room 50 provided in an L-shape on both sides of the first cooling room 74 is turned on at the time of opening the lighting room 9.
At this time, a pair of left and right illuminating devices 75 provided near the bent portion of the illuminating room 50 irradiate light downward from the upper rear part of the refrigerating room 37. Since it is provided in an L-shape over the room top surface and the upper rear surface, the refrigerator compartment 37 is three-dimensionally illuminated from the upper front surface and the upper rear surface.

Therefore, even if only one pair of lighting devices is used, the unevenness of the lighting is reduced from the front to the back in the refrigerator compartment, and the lighting is carried out by the stored object placed in front like the conventional lighting only from the back of the room. It is possible to achieve efficient and rational lighting without being interrupted. Further, since the lighting is compactly incorporated by utilizing the structure of the first cooling chamber 44, the space can be effectively used, and the appearance can be improved by the L-shaped lighting, and the assembly in the manufacturing process is easy. Can be done.

(Third Embodiment) In FIGS. 1 and 2, the temperature setting of the main body side storage section 40 of the refrigerator compartment 37 is set to be in a low temperature range of 0 to 3 ° C.

In such a configuration, the main body side storage 4
All the foods stored in the storage room 59 are stored at a low temperature to enhance the storage property, and the storage room 59 is maintained at a low temperature in addition to the environment in which drying is suppressed, and is more suitable for the divided storage of meat, fish, etc., and the storage period Can be extended. In addition, since the vegetable compartment 57 is also maintained at a low temperature, most vegetables and fruits are suppressed from respiratory action and transpiration, and can be stored for a long time. As described above, fresh food such as meat, fish, and vegetables having high temperature dependency can be stored in the refrigerator compartment without using a special cooling air path configuration or a temperature control device such as a damper device.

It is also possible to set the air direction of the cool air discharge port 48 to the direction of the door and set the door storage section 41 in the same low-temperature zone. If so, it is possible to manage the temperature classification of the door storage section 41 and the main body storage section 40 which are originally high in temperature distribution by setting the wind direction closer to the main body side.

(Embodiment 4) In FIGS. 1, 2 and 3, when the refrigeration cycle circulates through the second refrigerant circuit 72 and no refrigerant flows to the first evaporator 45, or the compressor 66 stops. And the first evaporator 45
The first blower 46 is operated for a predetermined time when the refrigerant is not flowing through the first blower 46.

In such a configuration, while the refrigerator compartment 37 is being cooled, that is, while the refrigerant is flowing into the first evaporator 45, the moisture in the air from the refrigerator compartment 37 and from outside the refrigerator is removed from the first evaporator 45. When the first blower 46 is operated when the refrigerant is not flowing to the first evaporator 45, the attached frost is melted by the air in the refrigerator compartment and reduced as moisture in the air. . And this humid air is stored in the refrigerator compartment 37.
By circulating through the inside, the humidity in the refrigerator compartment 37 is kept high.

Therefore, the drying of the food stored in the refrigerator compartment 37, the vegetable compartment 57, and the storage compartment 59 is further suppressed, and the storage period can be further extended and the storage quality can be further improved.

The operating time of the first blower 46 may be determined in consideration of the necessity of humidity and the degree of influence on power consumption. For example, a method of defining the value may be used.

Embodiment 5 FIG. 6 is a perspective view of a refrigerator according to Embodiment 5 of the present invention, and FIG.
FIG. 2 is a sectional view of the refrigerator according to the embodiment.

In FIGS. 6 and 7, reference numeral 76 denotes a refrigerator main body, and reference numeral 77 denotes a back plate connected to the back of the refrigerator compartment 37 by providing a step at the lower end of the first cooling compartment 74. A cool air suction air passage 78 is formed in the back space of the back plate 77 so as to extend vertically, and the upper end thereof communicates with the cool air inlet 47 of the first cooling chamber, and the lower end thereof is a rear part of the storage room 59 and the vegetable room 57. It communicates with the space. Reference numeral 79 denotes a cool air inlet formed in the back plate 77 corresponding to the storage compartment 56.

In such a configuration, the cool air discharged from the cool air discharge port 48 on the upper front surface of the refrigerator compartment 37 spreads to the lower part, cools the vegetable compartment 57 and the storage compartment 59, and is collected in the cool air intake air passage 78. The evaporator 45 is returned to the first evaporator 45. The cool air that has cooled each of the storage compartments 56 is sucked through a cool air suction port 79 at the back of the storage compartment 56, and the rear cool air suction air passage 78.
Through to the first evaporator 45.

Therefore, the discharged cold air is not collected in the first cooling chamber 74 at the upper part of the refrigerator compartment 37, and the cooling operation is performed after the cooling operation is securely performed to the lower part of the refrigerator compartment 37 before returning. high. Further, since the cool air circulates evenly in each of the storage sections 56 of the main body-side storage section 40, uneven cooling does not easily occur, and the storage quality of the stored food is stabilized.

Further, since the back air space formed in the back space of the back plate 77 is not a discharge air passage as in the prior art but an air passage through which air having a temperature similar to the temperature of the refrigerator compartment passes, the back surface of the back plate 77 is formed. The thickness of the cold air suction air passage 78 can be reduced without requiring any heat insulating material. Therefore, infringement of the effective space in the refrigerator compartment 37 can be reduced. Since the temperature of the cold air intake air passage is close to the temperature of the refrigerator compartment, an illumination device can be provided in the air passage. This is effective when it is desired to enhance the illumination from the vicinity of the center of the refrigerator compartment to the lower part.

(Embodiment 6) FIG. 8 is a sectional view of a refrigerator according to Embodiment 6 of the present invention.

In FIG. 8, reference numeral 80 denotes a refrigerator main body;
A refrigerating room 82 is formed at the upper part and a freezing room 83 is formed at the lower part by the heat insulating partition wall 81. The first cooling chamber 74, which is formed in a substantially L-shape between a horizontal portion and a vertical portion, is provided from a top portion to an upper rear portion in the refrigerator compartment 82. Also,
In the rear part of the freezing chamber 83, the second cooling chamber 6 is vertically arranged.
0 is provided.

A low-temperature chamber 84 is provided at the bottom of the refrigerator compartment 82 and mainly stores fresh foods such as meat, fish and shellfish. Reference numeral 85 denotes a vegetable room provided in the refrigeration room 82 above the low temperature room 84, and 86 denotes an air path control panel provided behind the low temperature room 84. Then, the wind path control panel 86
And a damper device 87 that regulates the amount of cold air supplied to the low-temperature chamber 84 to maintain the room temperature at a predetermined value (for example, 0 ° C.). In the second cooling chamber 60, the second blower 62
Is provided with a cool air discharge air passage 88 communicating with the discharge side. Reference numeral 89 denotes a cool air intake air path for returning the cool air that has cooled the low temperature chamber 84 to the second evaporator 61.

Also, 90, 91 and 92 are the refrigerator compartment 8
2. A temperature detector that detects the temperatures in the freezing room 83 and the low-temperature room 84 and maintains the temperature in each room at an appropriate temperature through a temperature control device (not shown).

The refrigerator configured as described above
Next, the operation will be described.

If the temperature detector 91 of the freezing room 83 is higher than the set value, the compressor 66 is operated.
If the temperature detector 90 in the second 2 detects a temperature higher than the set value, the refrigerant circulates to the first evaporator 45 and the second evaporator 61, and the refrigerant flows through the first blower 46 and the second blower 62. The refrigerator compartment 82 and the freezer compartment 83 are cooled by the forced ventilation.

The cooling inside the refrigerator compartment 82 is performed by the first cooling compartment 74.
This is performed by discharging air from a cold air discharge port 48 on the front to the upper front surface of the refrigerating chamber 82 through a cold air discharge air passage 49 in the inside. The discharged cool air descends below the front of the refrigerator compartment and from the rear through the cool air inlet 47 to the first cooling chamber 74.
Collected inside. At this time, the vegetable room 85 is also cooled by the cooling action of the first evaporator 45 and the first blower 46 at the same time. For example, the refrigerator room 82 is maintained at 4 ° C. and the vegetable room 85 is maintained at 6 ° C.

On the other hand, the cool air cooled by the second evaporator 61 provided in the second cooling chamber 60 is discharged into the freezing chamber 83 to cool the freezing chamber 83 to, for example, -18 ° C. Then, a part of the cooled cool air is sent into the cool air discharge air passage 88 by the forced ventilation of the second blower 62. If the temperature of the temperature detector 92 in the low temperature chamber 84 is higher than the set value,
When the damper device 87 is opened and cool air is discharged, the low-temperature chamber 8 is released.
The inside of the second evaporator 6 is cooled by the cool air suction air passage 89.
Returned to 1. Thereafter, when the temperature of the temperature detector 92 decreases to the set value, the damper device 87 closes and the cooling operation stops. By repeating this operation intermittently, the inside of the low temperature chamber 37 is kept cooled to a predetermined value (for example, 0 ° C.).

As described above, since the cooling in the low temperature chamber 84 is performed based on the cooling action of the second evaporator 61 and the second blower 62 provided in the freezing chamber 83, the low evaporation for cooling the freezing chamber is performed. The low-temperature cold air exchanged with the temperature can be used, and the temperature of the low-temperature chamber 84 can be easily maintained in a desired low-temperature zone. For this reason, fresh foods with high temperature dependency, such as meat and fish, can be stably stored, and the storage quality can be further improved. Further, the temperature can be set to a lower temperature than, for example, partial freezing at -3 ° C., so that fresh food can be stored for a long period of time, and the freedom of eating habits is expanded. further,
By not relying on the cooling of the low-temperature chamber 84 by the first evaporator 45 having a high evaporation temperature, it is possible to prevent the cooling time of the first evaporator 45 from being lengthened and the refrigerating chamber 82 from being overcooled more than necessary. Embodiment 7 FIG. 9 is a sectional view of a refrigerator according to Embodiment 7 of the present invention.

In FIG. 9, 93 is a refrigerator main body,
Refrigeration room 96 provided with a rotary heat insulating door 95 at the upper part by a heat insulating partition wall 94, drawer type heat insulating door 97 at the lower part, vegetable room 99 provided with storage container 98, drawer type heat insulating door 100 at the lower part, storage A freezing room 102 having a container 101 and a low-temperature room 105 having a drawer-type heat-insulating door 103 and a storage container 104 at the upper portion thereof are formed.

Here, the first cooling chamber 74, which is formed in a substantially L-shape with a horizontal portion and a vertical portion, is provided from the top portion to the upper rear portion in the refrigerator compartment 96. Further, the second cooling chamber 60 is provided in a vertical direction at a rear portion inside the freezing chamber 102.

The low temperature room 105 and the freezer room 102
A heat insulating partition wall 106 is provided between the low temperature chambers 10 and 10.
5 is provided with an air path control panel 107 having a heat insulation structure. Inside the air path control panel 107, a damper device 108 for adjusting the supply amount of cool air to the low temperature chamber 105 to maintain the room temperature at a predetermined value (for example, 0 ° C.), and the damper device 108, The second of the freezer 102
A cooling air discharge air passage 109 communicating with the discharge side of the second blower 62 is provided in the cooling chamber 60. Also, 110
Is a cool air intake air path for returning the cool air that has cooled the low temperature chamber 105 to the second evaporator 61.

Further, 111, 112 and 113 detect the temperatures in the refrigerating room 96, the freezing room 102 and the low-temperature room 105 and detect the temperatures in the respective rooms through a temperature control device (not shown) so as to maintain the temperatures in the respective rooms at an appropriate temperature. It is a vessel.

With respect to the refrigerator configured as described above,
Next, the operation will be described.

If the temperature detector 112 in the freezer compartment 102 is higher than the set value, the compressor 66 is operated. At this time, if the temperature detector 111 in the refrigerator compartment 96 detects a temperature higher than the set value, the refrigerant Are the first evaporator 45 and the second evaporator 6
1 and the refrigerating compartment 96 and the freezing compartment 102 are cooled by the forced ventilation of the first blower 46 and the second blower 62.

The cooling in the refrigerating chamber 96 is performed by the first cooling chamber 74.
This is performed by discharging air from the cold air discharge port 48 on the front to the upper front surface of the refrigerating chamber 96 via the cold air discharge air passage 49 in the inside. The discharged cool air descends below the front of the refrigerator compartment and from the rear through the cool air inlet 47 to the first cooling chamber 74.
Collected inside. At this time, the vegetable room 99 is also cooled by the cooling action of the first evaporator 45 and the first blower 46 at the same time. For example, the refrigerator room 96 is maintained at 4 ° C. and the vegetable room 99 is maintained at 6 ° C.

On the other hand, the cool air cooled by the second evaporator 61 provided in the second cooling chamber 60 is discharged into the freezing chamber 102 to cool the freezing chamber 102 to, for example, -18 ° C. Then, a part of the cool air cooled by the second evaporator 61 is
Is blown into the cool air discharge air passage 109 by the forced ventilation action of the blower 62. Then, the temperature detector 11 in the low temperature chamber 105
If the temperature of 2 is higher than the set value, the damper device 108 is opened, cool air is discharged, and the inside of the low-temperature chamber 105 is cooled,
The air is returned to the second evaporator 61 from the cool air intake air passage 110.
Thereafter, when the temperature of the temperature detector 112 decreases to the set value, the damper device 108 closes and the cooling operation stops. By repeating this operation intermittently, the inside of the low temperature chamber 105 is cooled and maintained at a predetermined value (for example, 0 ° C.).

As described above, the cooling in the low temperature chamber 105 is performed by the second evaporator 61 and the second blower 6 provided in the freezing chamber 102.
Since the cooling operation is performed based on the cooling operation of item 2, low-temperature cold air that has been heat-exchanged at a low evaporation temperature for cooling the freezing room can be used, and the temperature of the low-temperature room 105 can be easily maintained in a desired low-temperature zone.

The low-temperature chamber 105 is surrounded by heat-insulating partition walls 94 and 106 at the top and bottom, by the heat-insulating door 103 at the front, and by the wind-path control panel 107 having heat insulation at the back, so that it can be protected from outside. Stable temperature control can be performed without being affected by heat. For this reason, fresh foods with high temperature dependency, such as meat and fish, can be stably stored, and the storage quality can be further improved. Further, the temperature can be set to a lower temperature than, for example, partial freezing at -3 ° C., so that fresh food can be stored for a long period of time, and the freedom of eating habits is expanded.

Further, by providing a separate exclusive door 103 in the low-temperature chamber 105 and using the storage container 104 by pulling it out, food can be taken in and out independently at a height that is easy to use. By storing the road control panel 107 in the back which is difficult to use, the storage of the lower part of the refrigerator compartment 96 is improved,
In the present embodiment, the depth of the vegetable room 99 can be sufficiently ensured, and the storage capacity is improved.

(Embodiment 8) In the low temperature chamber 105 of FIG. 9, a temperature switching chamber capable of switching the temperature from the refrigeration temperature zone to the freezing temperature zone by changing the opening ratio of the damper device 108 by a temperature switching device such as a switch (not shown). The damper device 108 repeats the opening / closing operation based on the temperature detected by the temperature detector 112 according to the user's selection of an arbitrary temperature zone, and maintains the room in a desired temperature zone.

For this reason, low-temperature cold air that has been heat-exchanged at a low evaporation temperature for freezing room cooling is used based on the cooling action of the second evaporator 61 and the second blower 62 provided in the freezing room 102. And a cooling capacity capable of easily switching a wide temperature range from refrigeration to freezing can be obtained. And
The degree of freedom of food storage can be increased in accordance with the user's eating habits.

[0113]

As described above, according to the first aspect of the present invention, a refrigerating compartment having a plurality of shelves in the upper part of the main body and a freezing compartment in the lower part of the main body are formed by the heat insulating partition walls. A first evaporator vertically installed in a substantially L-shaped first cooling chamber at an upper rear portion and a top portion, a first blower provided above the first evaporator, and an upper portion formed in the first cooling chamber. A cool air discharge passage having a cool air discharge port on the front surface; a machine room provided with a compressor of a refrigeration cycle at a lower rear portion of the main body; and a second cooling room provided above the machine room and behind the freezer room. And a second blower provided above the second evaporator, and a first evaporator provided on both sides of the first cooling chamber.
As seen from the side formed by separating from the cooling air passage
A substantially L-shaped lighting room and a light-transmitting plate that covers the lighting room from the indoor side
And at least a pair of lighting devices provided in the lighting room , wherein the refrigerating room stores the first evaporator and the first blower, and the freezing room stores the second evaporator and the second blower. Cooling is commensurate with the temperature to increase the efficiency of the refrigeration cycle, and cooling air passages are also simplified in each room to increase cooling efficiency and reduce power consumption.

In addition, the air passage is simplified, and the effective internal volume is increased. Since the first cooling chamber is provided in the upper rear portion and the top portion of the refrigerator compartment, which has been conventionally inconvenient, the influence on the actual internal volume is further reduced, and the convenience of use of the frequently used storage range that is easily reachable by the user is improved. Be improved.

Further, by using a dedicated evaporator for the freezer compartment, the size of the second evaporator at the rear of the freezer compartment can be reduced, and the easy-to-use height storage range (central portion and lower portion) in the refrigerating compartment is expanded to be convenient. Is improved.

Further, since the refrigerator compartment is provided with a dedicated first evaporator, the evaporating temperature can be raised in accordance with the room temperature, and drying of the stored food is suppressed and the storage quality is improved.

In addition, the temperature rise in the front part of the refrigerator compartment and the supercooling in the rear part of the room are suppressed, and the uneven temperature in the room where the front part is high and the rear part is low is reduced, and the storage quality is stabilized. Further, since the cooling is performed independently of the freezing room, the storage quality is improved without being affected by the temperature rise due to the defrosting of the second evaporator.

Further, since the freezer compartment is also cooled by the dedicated second evaporator independently of the refrigerator compartment, the storage temperature is high and stable storage quality is not directly affected by the refrigerator compartment having a large storage load. can get.

Further, the inside of the refrigerator compartment is illuminated three-dimensionally.
There is less uneven lighting from the surface to the back,
For storage items placed in front of you like lighting only from inside
Therefore, the lighting is not interrupted. And the first
Lighting is built in compactly using the structure of the cooling room
Space allows for effective use of space and appearance
Also, assembly in the manufacturing process can be easily performed.

According to a second aspect of the present invention, a refrigerator room having a plurality of shelves at the upper part by a heat insulating partition wall and a vegetable room under the refrigerator room are provided.
A freezer compartment is formed at the bottom and independent doors are provided for each compartment,
A first evaporator and a first blower are provided in a vertical direction in a first cooling chamber provided from an upper rear portion to a ceiling portion of the refrigerating room, and a cool air discharge air passage is formed in an upper portion in the first cooling chamber and in a front surface. A second outlet in a vertical direction in a second cooling chamber provided with a cool air discharge port and provided in the rear of the freezing chamber above the machine room behind the lower part of the refrigerator main body;
And an evaporator and a second blower are further provided .
Separated from the first evaporator and cool air discharge air passage provided on both sides
A substantially L-shaped lighting room as viewed from the side
A light-transmitting plate that covers the room from the indoor side,
And a pair of lighting devices , wherein the first evaporator and the first blower cool the refrigerator compartment and the vegetable compartment, and the second evaporator and the second blower cool the freezing room. The refrigerator compartment and the vegetable compartment are cooled by the first evaporator and the first blower, and the freezer compartment is cooled by the second evaporator and the second blower according to the respective storage temperatures, thereby increasing the efficiency of the refrigeration cycle. At the same time, the evaporating temperature of the refrigerator compartment and the vegetable compartment can be raised by a dedicated evaporator in accordance with the room temperature, so that the vapor pressure difference is reduced and the drying of the stored food is suppressed.

Further, the air passage is simplified, the ineffective space especially at the back of the vegetable room is eliminated to increase the storage capacity, and the refrigerator room is provided with an easy-to-use independent door at a convenient height. Usability is improved.

Furthermore, the refrigerator compartment is illuminated three-dimensionally and
There is less uneven lighting from the surface to the back,
For storage items placed in front of you like lighting only from inside
Therefore, the lighting is not interrupted. And the first
Lighting is built in compactly using the structure of the cooling room
Space allows for effective use of space and appearance
Also, assembly in the manufacturing process can be easily performed.

[0123] According to a third aspect of the invention, Oite to the invention claimed in claim 1 or claim 2, illuminating a pair of lighting devices
It is provided near the bent part of the room, and the light-transmitting plate is
L-shape from the top of the refrigerator compartment to the upper back of the refrigerator compartment
From the upper front and back of the refrigerator compartment
It is illuminated three-dimensionally. Therefore, only one pair of lighting devices
Even if there is uneven lighting from the front to the back inside the refrigerator compartment
Thus, efficient and rational lighting can be achieved.

[0124]

[0125]

[0126]

[0127]

[0128]

[0129]

[0130]

[0131]

[0132]

[0133]

[0134]

[0135]

[Brief description of the drawings]

FIG. 1 is a perspective view of Embodiment 1 of a refrigerator according to the present invention.

FIG. 2 is a sectional view of Embodiment 1 of the refrigerator according to the present invention.

FIG. 3 is a refrigeration cycle diagram of Embodiment 1 of the refrigerator according to the present invention.

FIG. 4 is a perspective view of Embodiment 2 of the refrigerator according to the present invention.

FIG. 5 is a sectional view of Embodiment 2 of the refrigerator according to the present invention.

FIG. 6 is a perspective view of Embodiment 5 of the refrigerator according to the present invention.

FIG. 7 is a sectional view of Embodiment 5 of the refrigerator according to the present invention.

FIG. 8 is a sectional view of Embodiment 6 of the refrigerator according to the present invention.

FIG. 9 is a cross-sectional view of Embodiment 7 of the refrigerator according to the present invention.

FIG. 10 is a sectional view of a conventional refrigerator.

FIG. 11 is a refrigeration cycle diagram of a conventional refrigerator.

[Explanation of symbols]

 32 Refrigerator body 36 Insulated partition wall 37 Refrigerator room 38 Freezer room 40 Main body side storage unit 44 First cooling room 45 First evaporator 46 First blower 48 Cold air discharge port 49 Cold air discharge air passage 50 Lighting room 52, 53 Illumination device 54 Translucent plate 55 Shelf 57 Vegetable room 60 Second cooling room 61 Second evaporator 62 Second blower 66 Compressor 67 Condenser 68 First decompressor 69 Switching valve 70 Second decompressor 71 1st refrigerant circuit 72 2nd refrigerant circuit 74 1st cooling room 75 Illumination device 78 Cold air intake airway 79 Cold air intake 81 Insulated partition wall 82 Refrigeration room 83 Freezing room 84 Low temperature room 87 Damper device 92 Temperature of low temperature room Detector 94 Insulated partition wall 96 Refrigerator room 102 Freezer room 103 Insulated door 105 Low temperature room 106 Insulated partition wall 107 Air flow control panel 108 Damper device 113 Temperature of low temperature room Detector

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F25D 17/08 307 F25D 19/04 F25D 27/00

Claims (3)

(57) [Claims] An insulated partition wall vertically dividing the inside of a refrigerator main body, a refrigerator compartment having a plurality of shelves partitioned and formed at an upper portion of the refrigerator main body by the heat insulating partition wall, and a refrigerator compartment formed at a lower portion of the refrigerator main body. A freezing compartment, a first cooling compartment provided from an upper rear portion to a ceiling portion of the refrigerating compartment, a first evaporator vertically installed at a rear portion of the first cooling compartment, A first blower provided above the evaporator;
A cool air discharge air passage formed at an upper portion of the first cooling chamber and provided at a ceiling portion of the refrigerator compartment, a cool air discharge port formed at a front surface of the cool air discharge air passage, and a lower rear portion of the refrigerator main body. A machine room provided with a compressor of a refrigeration cycle, a second cooling room provided above the machine room and behind the freezing room, and a second evaporator vertically installed in the second cooling room And a second blower provided above the second evaporator;
A first L-shaped illumination chamber, which is provided on both sides of the first cooling chamber and is substantially L-shaped when viewed from a side surface formed by partitioning the first evaporator and the cool air discharge air passage; A refrigerator provided with a light-transmitting plate covering from the inside and at least a pair of lighting devices provided in the lighting room. 2. A heat-insulating partition wall for vertically partitioning the inside of a refrigerator main body, a refrigerator compartment having a plurality of shelves formed above the thermal insulation partition wall, and a lower portion of the refrigerator compartment above the heat-insulation partition wall. , A freezer compartment defined below the heat insulating wall, a door provided independently at the front of the refrigerator compartment, the vegetable compartment and the freezer compartment, and an upper rear portion of the refrigerator compartment. A first cooling chamber provided to the top,
A first evaporator vertically disposed at the rear of the cooling chamber of the first, and a first blower provided above the first evaporator,
A cool air discharge air passage formed at an upper portion of the first cooling chamber and provided at a ceiling portion of the refrigerator compartment, a cool air discharge port formed at a front surface of the cool air discharge air passage, and a lower rear portion of the refrigerator main body. A machine room provided with a compressor of a refrigeration cycle, a second cooling room provided above the machine room and behind the freezing room, and a second evaporator vertically installed in the second cooling room And a second blower provided above the second evaporator;
A first L-shaped illumination chamber, which is provided on both sides of the first cooling chamber and is substantially L-shaped when viewed from a side surface formed by partitioning the first evaporator and the cool air discharge air passage; A translucent plate covering from the inside, and at least a pair of lighting devices provided in the lighting room, the first evaporator and the first blower cool the refrigerator room and the vegetable room, and the second room. A refrigerator configured to cool the freezer compartment with an evaporator and a second blower. 3. The refrigerator according to claim 1, wherein a pair of lighting devices are provided near a bent portion of the lighting room.